History into the modern industrial society, metal - metal products industry is the rapid development of the hardware industry has played an invaluable role in national economic development, industrial manufacturing metal products have become an indispensable part of an industry.
Manufacturing metal products and general equipment manufacturing in the common parts, etc. related products classified in the composition of the "hardware" in the usual sense. Thus, the "hardware" is not an existing industry categories, but said several metal products - cross combination of hardware products.
Nevertheless, we can not deny the important role of "hardware" in the social production process: "hardware" and the manufacturing sector is intertwined and indivisible.